Macro Scale

Latest Innovations

Multiple-Input Buck Boost Power Converter

A power converter circuit to convert multiple direct current (dc) inputs to one or more dc outputs. This dc-dc power converter allows its load to be powered by multiple,...

Method for Isolating Antennas Using Meandered-Line Ground Plane Surface Wave Filter

 

A wireless communication device includes multiple antennas spaced apart from each other. Also included is a dielectric substrate with electrically conductive...

An Internally Heated Shape Memory Polymer Dry Adhesive

 

Dr. Kim from the University of Illinois has developed a 2-part dry adhesive which has an electrically conductive layer and an adhesive layer. The electrically...

Novel Method for the Production of Nylon

University of Illinois researchers have identified a new process for the production of nylon. Nylon is one of the most commonly used polymers, however the common...

Multiple-Carrier Pulse Width Modulation for Inverter Operation

A method for generating pulse width modulated control signal has the steps of providing a base carrier waveform, segmenting the base carrier waveform into a plurality of...

A Method for Compensating Wave Reflections in Transmission Lines

 

This technology is a method to eliminate voltage overshoot in cables used to connect AC electric motors and pulse width modulation (PWM) inverters. As a function...

Series-Input Parallel Output Multiple DC-DC Converter with Dynamic Current Sharing for High-Current DC Power Supply

The combination of a unique series-input parallel-output (SIPO) circuit configuration and a sensorless current mode (SCM) technique ensures automatic and nearly perfect...

Commutation technique for an ac-to-ac converter based on state machine control

This invention is a technique that resolves current commutation challenges in various types of ac-ac switching power converters. It also applies to inverters and...

Control Methods and Circuits for Extremely Fast Response in Switching Power Converters

 

A method for accomplishing energy changes for a power converter to minimize an impact of a disturbance. The power converter includes energy storage and switches....

Trade-off Method for Power Factor Correction

The invention recognizes that filter size can be reduced substantially as power factor is permitted to deviate below unity in systematic ways. Preferred methods of the...

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